20680497075

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{103}}^1\times {\mathrm{281}}^1\times {\mathrm{1361}}^1$

素因数の和:1765

約数の個数: 96

約数和(自身を含む): 39625178112

約数和(自身を除く): 18944681037

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 103, 105, 175, 281, 309, 515, 525, 721, 843, 1361, 1405, 1545, 1967, 2163, 2575, 3605, 4083, 4215, 5901, 6805, 7025, 7725, 9527, 9835, 10815, 18025, 20415, 21075, 28581, 28943, 29505, 34025, 47635, 49175, 54075, 86829, 102075, 140183, 142905, 144715, 147525, 202601, 238175, 382441, 420549, 434145, 607803, 700915, 714525, 723575, 981281, 1013005, 1147323, 1912205, 2102745, 2170725, 2677087, 2943843, 3039015, 3504575, 4906405, 5065025, 5736615, 8031261, 9561025, 10513725, 13385435, 14719215, 15195075, 24532025, 28683075, 39391423, 40156305, 66927175, 73596075, 118174269, 196957115, 200781525, 275739961, 590871345, 827219883, 984785575, 1378699805, 2954356725, 4136099415, 6893499025, 20680497075]

約数ペア:

[(1, 20680497075), (3, 6893499025), (5, 4136099415), (7, 2954356725), (15, 1378699805), (21, 984785575), (25, 827219883), (35, 590871345), (75, 275739961), (103, 200781525), (105, 196957115), (175, 118174269), (281, 73596075), (309, 66927175), (515, 40156305), (525, 39391423), (721, 28683075), (843, 24532025), (1361, 15195075), (1405, 14719215), (1545, 13385435), (1967, 10513725), (2163, 9561025), (2575, 8031261), (3605, 5736615), (4083, 5065025), (4215, 4906405), (5901, 3504575), (6805, 3039015), (7025, 2943843), (7725, 2677087), (9527, 2170725), (9835, 2102745), (10815, 1912205), (18025, 1147323), (20415, 1013005), (21075, 981281), (28581, 723575), (28943, 714525), (29505, 700915), (34025, 607803), (47635, 434145), (49175, 420549), (54075, 382441), (86829, 238175), (102075, 202601), (140183, 147525), (142905, 144715)]